SE431 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – ADJUSTABLE PRECISION SHUNT REGULATOR

SEAWARD
ELECTRONICS
Adjustable Precision
Shunt Regulator
SE431
Description
The SE431 is a low voltage three terminal
adjustable shunt regulator with a guaranteed thermal
stability over applicable temperature ranges. The output
voltage can be set to any value between V_REF
(approximately 2.5 V) to 18V with two external resistors.
This device has a typical output impedance of 0.2Ω.
Active output circuitry provides a very sharp turn on
characteristic, making this device excellent replacement
for Zener diodes in many applications.
The SE431 is characterized for operation from 0^oC
to 105^oC, and five package options (SOT-23-3, SOT-23-5,
SOP-8, TO-92 and SOT-89) allow the designer the
opportunity to select the proper package for their
applications.
Features
¾ Low voltage operation (2.5V)
¾ Adjustable output voltage V₀ = V_REF to 18V
¾ Wide operating current range 120µA to 100mA
¾ Low dynamic output impedance 0.2Ω (Typ.).
¾ Trimmed bandgap design up to + 0.5%.
¾ ESD rating is 5.5KV(Per MIL-STD-883D).
¾ Available in Lead Free Packages.
Application
¾ Linear Regulators
¾ Adjustable Supplies
¾ Switching Power Supplies
¾ Battery Operated Computers
¾ Instrumentation
¾ Computer Disk Drives
Block Diagram
Cathode
Ref
+
-
Symbol Diagram
Cathode
Vref
Ref
Anode
Anode
All contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2005. • www.seawardinc.com • Page 1